All in all, I think the gear theory is not most likely explanation for LENR. I have a different theory that I'm not going to waste time discussing until I get some more important things done.
The LENR process is the collection of the countless spins of photons and getting them all to point in the same direction. This is what a magnet does but LENR does more. LENR not only collects photon spins but it aggregates all these spins of photons into the same monolithic beam. In comparison, this aggregation process is like the difference between an ant colony with a 10 million ants(a magnet) or one ant that is 20 feet tall(a LENR surface plasmon polariton(SPP) soliton).